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Finding the Fourth Proportional to 481,998.24, 665,131.95 and 278,037

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Solution

The fourth proportional to 481,998.24, 665,131.95 and 278,037 is: 383,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,998.24 : 665,131.95 = 278,037 : x
  2. Step 2: Convert to fraction form
    481,998.24/665,131.95 = 278,037/x
  3. Step 3: Cross multiply
    481,998.24x = 665,131.95 × 278,037
  4. Step 4: Simplify right side
    481,998.24x = 184,931,291,982.15
  5. Step 5: Solve for x
    x = 184,931,291,982.15/481,998.24
  6. Step 6: Final answer
    x = 383,676.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.